当定语从句的主句只有一个先行词时,怎样来划分主从句的句子成分?如：The man who is reading is m

当定语从句的主句只有一个先行词时,怎样来划分主从句的句子成分?如：The man who is reading is m 为什么定语从句 The man who is reading a book 是错的 The man who is smoking 这句话是不是定语从句,是的话那么这句话的先行词是什么■■■■■■■■■ The man who worked here is his teacher.中的定语从句,先行词,关系代词在从句中的成 He is the man who lives next door.的句子成分真么划分. 定语从句的问题请帮我划分一下这些定语从句的成分,主谓宾,以及先行词等,要详细一点,1.the real truth is 关于定语从句,英语.一个句子“A man called Tom is reading the book.一个叫汤姆的男人 定语从句中,先行词做主句的表语时,只能用that . 例句：China is not the 主句中的表语可不可以充当定语从句的先行词 定语从句 This is the man I met yesterday中省略的是who还是whom 这句话的定语从句能省略吗1.He is the man who I served. the book is helpful that...that从句做book的定语,属于定语从句?helpful是先行词